refactor: 새로운 커스텀 예외와의 호환성을 위해 예외 타입을 임시로 Exception 지정

src/main/kotlin/roomescape/reservation/web/ReservationController.kt

@@ -90,7 +90,7 @@ class ReservationController(
             )
             return ResponseEntity.created(URI.create("/reservations/${reservationRetrieveResponse.id}"))
                     .body(CommonApiResponse(reservationRetrieveResponse))
-        } catch (e: RoomescapeException) {
+        } catch (e: Exception) {
             val cancelRequest = PaymentCancelRequest(paymentRequest.paymentKey,
                     paymentRequest.amount, e.message!!)
             val paymentCancelResponse = paymentClient.cancel(cancelRequest)